/*
 * Copyright © 2002-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System.Reflection;

namespace Spring.Objects.Factory.Config;

/// <summary>
/// Extension of the <see cref="IInstantiationAwareObjectPostProcessor"/> interface,
/// adding a callback for predicting the eventual type of a processed object.
/// </summary>
/// <remarks>This interface is a special purpose interface, mainly for
/// internal use within the framework. In general, application-provided
/// post-processors should simply implement the plain <see cref="IObjectPostProcessor"/>
/// interface or derive from the <see cref="InstantiationAwareObjectPostProcessorAdapter"/>
/// class.  New methods might be added to this interface even in point releases.
/// </remarks>
/// <seealso cref="InstantiationAwareObjectPostProcessorAdapter"/>
/// <author>Juergen Hoeller</author>
/// <author>Mark Pollack (.NET)</author>
public interface SmartInstantiationAwareObjectPostProcessor : IInstantiationAwareObjectPostProcessor
{
    /// <summary>
    /// Predicts the type of the object to be eventually returned from this
    /// processors <see cref="IInstantiationAwareObjectPostProcessor.PostProcessBeforeInstantiation"/> callback.
    /// </summary>
    /// <param name="objectType">The raw Type of the object.</param>
    /// <param name="objectName">Name of the object.</param>
    /// <returns>The type of the object, or <code>null</code> if not predictable.</returns>
    /// <exception cref="ObjectsException">in case of errors</exception>
    Type PredictObjectType(Type objectType, string objectName);

    /// <summary>
    /// Determines the candidate constructors to use for the given object.
    /// </summary>
    /// <param name="objectType">The raw Type of the object.</param>
    /// <param name="objectName">Name of the object.</param>
    /// <returns>The candidate constructors, or <code>null</code> if none specified</returns>
    /// <exception cref="ObjectsException">in case of errors</exception>
    ConstructorInfo[] DetermineCandidateConstructors(Type objectType, string objectName);
}